CA2336426A1 - Attachment assembly for use on flat roofs - Google Patents

Attachment assembly for use on flat roofs Download PDF

Info

Publication number
CA2336426A1
CA2336426A1 CA002336426A CA2336426A CA2336426A1 CA 2336426 A1 CA2336426 A1 CA 2336426A1 CA 002336426 A CA002336426 A CA 002336426A CA 2336426 A CA2336426 A CA 2336426A CA 2336426 A1 CA2336426 A1 CA 2336426A1
Authority
CA
Canada
Prior art keywords
assembly
roof
edge
teeth
cart
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002336426A
Other languages
French (fr)
Other versions
CA2336426C (en
Inventor
Theodore R. Palmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2336426A1 publication Critical patent/CA2336426A1/en
Application granted granted Critical
Publication of CA2336426C publication Critical patent/CA2336426C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0043—Lifelines, lanyards, and anchors therefore
    • A62B35/0068—Anchors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
    • E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
    • E04G21/3233—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof
    • E04G21/3238—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof using counterweights
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
    • E04G21/3276—Arrangements on buildings for connecting safety-lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Handcart (AREA)

Abstract

An attachment assembly provides a secure attachment point for the fall arrest tether lines of safety harnesses of workers on flat roofs, the assembly being movable over the roof as required. The assembly can be used alone, but usually is mounted on a wheeled utility cart as employed by roofers to move materials on the roof, or may be an integral part of such a cart. The assembly has a base frame that is spaced from the roof edge over which the worker may fall. An attachment member for tether lines is mounted on the base frame together with at least two longitudinally spaced surface engaging arm, the arms being located at the frame side nearer to the roof edge. When the assembly is in operative position each arm has its lower end, which usually has teeth, close to the roof surface. A
counterweight is mounted on the opposite side of the base frame. Upon a fall from the roof the tether line pulls on the attachment member downward and toward the edge, the pull tilting the base and cart frames to engage the teeth with the roof surface, whereupon the ends become pivots about which the frames can pivot against the counterweight, which ensures only minor tilting and/or dragging of the assembly toward the edge. With e.g.
concrete roofs the teeth may be replaced by bolts in the surface against which the arm ends butt for the assembly to pivot.
CA002336426A 2000-03-08 2001-02-13 Attachment assembly for use on flat roofs Expired - Lifetime CA2336426C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/520982 2000-03-08
US09/520,982 US6227553B1 (en) 2000-03-08 2000-03-08 Attachment assembly for use on flat roofs

Publications (2)

Publication Number Publication Date
CA2336426A1 true CA2336426A1 (en) 2001-09-08
CA2336426C CA2336426C (en) 2004-05-04

Family

ID=24074855

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002336426A Expired - Lifetime CA2336426C (en) 2000-03-08 2001-02-13 Attachment assembly for use on flat roofs

Country Status (2)

Country Link
US (1) US6227553B1 (en)
CA (1) CA2336426C (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7032710B2 (en) * 2002-03-18 2006-04-25 Bacou-Dalloz Fall Protection, Inc. Anchor point devices, systems and methods for use in fall protection
US6880838B2 (en) * 2002-09-18 2005-04-19 Stp Nuclear Operating Co. Material cart for use on curved surface roofs
US20070267249A1 (en) * 2006-05-18 2007-11-22 Cullen David P Roof safety system
US8240431B2 (en) * 2006-06-16 2012-08-14 Brent Smith Apparatus for arresting a fall
US8100228B2 (en) * 2007-10-12 2012-01-24 D B Industries, Inc. Portable anchorage assembly
US20090321184A1 (en) * 2008-06-30 2009-12-31 D B Industries, Inc. Portable anchor assembly
US8627923B2 (en) * 2010-01-15 2014-01-14 Garlock Safety Systems Inc. Tank lifeline system
US8584798B2 (en) * 2010-06-10 2013-11-19 Garlock Safety Systems Inc. Safety apparatus for arresting a fall of a worker
US9186529B2 (en) * 2012-04-04 2015-11-17 Pnrc International Inc. Mobile roof safety device
US8985273B2 (en) * 2012-09-14 2015-03-24 Kevin Terry Portable window washer anchoring and tethering apparatus
US10195734B2 (en) * 2014-06-12 2019-02-05 Western Construction Group, Inc. Tool stabilizer and methods of assembling the same
US9675824B2 (en) * 2015-05-14 2017-06-13 Charles J. Mackarvich Fall rescue apparatus
US10226650B2 (en) * 2015-06-08 2019-03-12 Frank P. Frey And Company Mobile safety fall arrest cart
US11865378B2 (en) * 2015-06-08 2024-01-09 Frank P. Frey And Company Mobile safety fall arrest cart
US10507574B2 (en) * 2015-12-01 2019-12-17 Justin Brandt Confined entry device
US10456608B2 (en) * 2016-02-08 2019-10-29 Garlock Safety Systems Inc. Safety apparatus for arresting a fall of a worker
US10183185B2 (en) * 2016-02-16 2019-01-22 On Top Safety Company, Inc. Fall arrest apparatus
US10118057B2 (en) * 2016-04-29 2018-11-06 Auburn University Fall restraint system
US10584500B2 (en) * 2016-06-06 2020-03-10 John A Tann Assembly for accessing an electronic display
US11452892B2 (en) * 2019-06-18 2022-09-27 Kelly Steel LLC Mobile fall restraint apparatus
US11167782B1 (en) 2020-12-30 2021-11-09 Charles J. Mackarvich Fall arrest cart
US11826589B2 (en) * 2021-10-05 2023-11-28 Charles J. Mackarvich Balance mobile anchor cart

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707585A (en) * 1950-04-20 1955-05-03 Perry H Hoey Combined hand truck and ladder
US3003579A (en) * 1959-07-13 1961-10-10 Dalco Ind Inc Boom
US4174021A (en) * 1978-05-16 1979-11-13 Alnor Material Handling Limited Ladder truck
US4213624A (en) * 1978-09-05 1980-07-22 General Dynamics Corporation Pomona Division Pallet transport system
US4274507A (en) * 1979-08-01 1981-06-23 Albert Williams Portable support for a scaffold
US4799840A (en) * 1982-07-21 1989-01-24 Np Marketing Corporation Drum-restraining device
US4496027A (en) * 1983-01-31 1985-01-29 Spider Staging, Inc. Mobile outrigger for suspending scaffold
US4801228A (en) * 1983-06-24 1989-01-31 N P Marketing Corporation Bandable cargo restraining device
US4817758A (en) * 1988-02-16 1989-04-04 Gilmore James E Window cleaning support structure
US5065838A (en) * 1990-08-29 1991-11-19 Finley Arthur C Movable support for window washers and the like
US5135078A (en) * 1991-01-15 1992-08-04 Michael Bell Portable support system for suspending persons from buildings
US5476282A (en) * 1991-09-17 1995-12-19 Dahl; Gary-Michael Convertible transport cart
US5370203A (en) * 1993-01-28 1994-12-06 Werner Co. Ladder shoe spur plate
US5328192A (en) * 1993-03-18 1994-07-12 Thompson John R Manual pull-type carrier for transporting a large game carcass
US5337856A (en) * 1993-07-14 1994-08-16 Fillers James J Ladder anchoring pins
US5820143A (en) * 1997-05-09 1998-10-13 Rigo; Alex Z. Recycler trolley

Also Published As

Publication number Publication date
CA2336426C (en) 2004-05-04
US6227553B1 (en) 2001-05-08

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20210215